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EricIsMe
EricIsMe
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MP4 video files have out of sync audio?

Jan 6, 2012 1:41 AM

Tags: #help #video #out #pro #audio #premiere #of #sync #mp4

When I import an MP4 video into Premiere Pro CS5.5, I noticed that while playing it the audio gradually becomes out of sync. I am unsure as to what causes this, but when I play the exact same video in an external player (like VLC) the audio is fine.

 

I've tried using Audition to export the audio from the video as a WAV file, but upon importing that into PP CS5.5, I discovered that it becomes much worse.

 

I'm not sure at this point if the audio is the issue or the video is the issue, but I'd really like an answer.

 

Audio settings are at 48 kHz for the audio itself and the sequence in Premiere Pro.

 

Thanks.

4354 Views   8 Replies   Latest reply: lchapman66, Mar 11, 2012 11:51 AM
 
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  • John T Smith
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    1. John T Smith,
    Jan 6, 2012 9:10 AM   in reply to EricIsMe
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    Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037

    What is a CODEC... a Primer http://forums.adobe.com/thread/546811

    What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037

    .

    Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing

    .

    For PC http://www.headbands.com/gspot/ or http://mediainfo.sourceforge.net/en

    For Mac http://mediainfo.massanti.com/

    .

    http://blogs.adobe.com/premiereprotraining/2011/02/red-yellow-and-gree n-render-bars.html

    .

    Once you know exactly what it is you are editing, report back with that information... and your project setting, and if there is a red line above the video in the timeline, which indicates a mismatch between video and project

    .

    Also, See 2nd post for picture of NEW ITEM process http://forums.adobe.com/thread/872666

     
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  • EricIsMe
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    2. EricIsMe,
    Jan 6, 2012 2:07 PM   in reply to John T Smith
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    Here is the screen shot of my file in Gspot:

     

    gspotScreen.png

     

    And here is the screen of Premiere Pro. I made different sequences at different FPS rates, and the problem persisted. I also made a "NEW ITEM" from the video file which is what is pictured below, at 59.89FPS. Again, the problem persisted.

     

    PPScreen.png

     

    If the image is too small here it is viewable via this link: http://i.imgur.com/t83AI.png

     
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  • EricIsMe
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    3. EricIsMe,
    Jan 6, 2012 3:05 PM   in reply to EricIsMe
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    Ok, I found out I could re-export the video from my PVR (where I got the original video) to an AVI. I did that, and deleted the original footage in PrPre and replaced it with the new AVI. I made a new item from it, and played the video. It seemed to work, so I skipped ahead to where the audio began to get out of sync originally, but suddenly there was no sound whatsoever, no matter where I went in the clip. The waveforms were there, but no sound was coming out.

    I figured I'd export it just to see if it would fix itself during encoding (I export as H.264) but PrPre kept popping up with an error saying it couldn't export. Same issue with Adobe Media Encoder... I tried exporting that sequence as an AVI and even Quicktime and it kept coming up with the same error.

    Again, the AVI plays fine with VLC so I'm not sure what the issue is this time.

     

    The error is "[..\..\Src\WinFile.ccp-785]"

     
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  • Jim Simon
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    4. Jim Simon,
    Jan 6, 2012 8:05 PM   in reply to EricIsMe
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    video from my PVR (where I got the original video)

     

    You're really not allowed to edit that.  If you stick with original media you shot yourself using a supported camera format, you should have better results.

     
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  • EricIsMe
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    5. EricIsMe,
    Jan 7, 2012 3:29 PM   in reply to Jim Simon
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    It's a PVR specifically manufactured to record video game footage and store it on your computer, not TV shows and movies or whatever. This process is perfectly legal provided I'm not using it for monetary gain somehow (if it's gameplay footage then that's next to impossible). If that is what you're suggesting.

     

    It comes with its own video editing program but it's obviously not as broad and has hardly any features compared to PrPre.

     

    So yes, I am allowed to edit it, as that is the entire point of the device. The issue is that the formats are compatible but aren't working well with PrPre, and I need help with that as described in my previous posts.

     
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  • FFR LTD
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    6. FFR LTD,
    Jan 25, 2012 11:49 PM   in reply to EricIsMe
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    Audio out of sync when importing into Premiere Pro CS5.5

     

    We had this same problem, it appears that Premiere Pro cannot handle High Definition footage that is any longer than 4 mins, as that is the time that the audio always goes out of sync.

     

    We have solved this (after many long hours of scouring forum pages etc) By converting the proposed clip to be imported, to .wmv in a converter software, we are using a free avi. Converter software and this works fine.  Once converted to .wmv you can import without any out of sync audio problems.

     
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  • John T Smith
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    7. John T Smith,
    Jan 26, 2012 8:21 AM   in reply to EricIsMe
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    Same question as before... what are the DETAILS of the video inside that AVI file?

     

    I could save a Word document as myfile.avi but that does not mean it would edit in PPro

     

    Does the recorder vendor offer editing software for their files?

     
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  • lchapman66
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    8. lchapman66,
    Mar 11, 2012 11:51 AM   in reply to EricIsMe
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    I have the same audio sync issue with 720p footage from my Galaxy Nexus phone.  My current workaround is to use Quicktime Pro to output an un-compressed mov file and import that into Premiere.  Big file, but sync'ed audio.

     
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